Jul 27, 2011

ONE-HIT PROGRESSIVE CHESS

As FIDE Progressive Chess except:

Each player makes from 1 to the turn number, of moves, subject to
the condition that any capture, check or promotion ends the series.

Sample Game

     1. e4
     2. e6 Be7
     3. Qg4 Qg5 Q:e7+
     4. N:e7
     5. e4 Nf3e5c6:d8
     6. f5f4 O-O d6 Nc6:d8
     7. Bb5 Bd7 a4 b3 c4 f3 B:c8
     8. Na6b4 a5 c5 g5 h5h4 R:c8
     9. g4 h3 d5 Rh2 Rc3 Raa2 Bd2 B:b4
    10. b6 e5 Kf7 Rc7 Re8e7 c:b4
    11. c5 Rc4 Rac2 Kd3 c:b6
    12. Rb7 Rec7c5 Ke7 Ne6d4e2g1:h3
    13. N....h3
    14. Rb8 K..b7 Rbc8 R:c4
    15. K..b2 Rc1 b:c4
    16. K:b6
    17. Nf2 R...h3 Kb3 N...e7 N:c8+
    18. K..:c8
    19. c567 K...c6 R...b8++
    
Final Position:

. . k . . . . .
. . O . . . . .
. . K p . . . .
p . . O p . p .
O p . . O p O p
. . . . . O . R
. . . . . . . .
. . . . . . . .

Jul 11, 2011

CADUCEUS

Played on an 8x8 board, each player starts with two stones, at opposite corners.  
Group-restricted 12* moves per turn.

For each move, a player removes the tail of one of his groups, then adds two successive rookwise-adjacent new stones on empty cells at the head of it.

A player loses if he cannot complete a legal turn.


The first moves (the '-' clarifies the chain structure):

                       _J___N_    _B___T_
. . . . . . . .    1. es   --    ee   ss
. j-j . . . . ,    2. es   nw    nn   ww
. . J . . T-t-t    3.
. . . . . . . .    4.
. . . . . . . .    5.
. . B . . . . .    6.
. . b . . . N-n    7.
. , b . . . . .    8.

and the entire game:
                       _J__N_    _B__T_
. . t-t-t-t-t-t    1. es  --    ee  ss
. . t . . ,-t-t    2. es  nw    nn  ww
. T-t . . . . n    3. se  wn    en  ww
. N-n-n-n-n . n    4. es  nn    ww  ne
b-b-b . . n-n-n    5. ss  en    ss  ee
b . B . . J-j-j    6. ws  es    es  en
b b-b j-j . . j    7. ee  sw    ww  ww
b-b-b j-j-j-j-j    8. ee  wn    nn  ww
                   9. nn  ww    ne  ws
                   10. ww  ww    es  sw
                   11. resign

                  
A better variant uses double removal and triple growth for faster moves (and a 10x10 board)

A game example:
                      
     _J____N_   _B____T_
1.  wws  ---   sss  nww
2.  ssw  enn   eee  wnn
3.  wss  nee   sse  nne
4.  sss  sww   nnn  sss
5.  eee  nnn   www  een
6.  sww  wne   nee  wnn
7.  wwn  ees   ees  www
8.  www  ese   ene  nee
9.  wnn  sww   see  ees
10.  nnn  see   nnw  sss
11.  nnn  ees   www  swn
12.  ese  swn   wss  nww
13.  ess  wsw   ssw  nee
14.  wss  nws   ses  nnw
15.  sww  wnw   enn  nee
16.  nen  swn   nen  sss
17.  wne  nee   wne  sss
18.  nwn  eee   nes  swn
19.  nws  ees   resign

Final Board:
j-j . . b-. b-b . B  1
j J j-j b b-b-b-b-b  2
j-j . j b b-b t-t-t  3
j-j j-j b b-b t-t t  4
j-j j b-b b . . t t  5
j-j j b-b b t-t-t t  6
j-j-j . b-b t T-t t  7
n-n-n-n-n-n-n-n t t  8
n n-n n-n n-. N t t  9
n-n n-n n-n . . t-t 10


This game was inspired by the light motorcyles from the TRON movies.